A paper bag processing method and processing system used therein

Abstract

The present invention relates to a paper bag processing method, the steps of which include: starting to discharge kraft paper by a first feeding mechanism, feeding shredded paper into the upper surface of kraft paper by a waste paper feeding mechanism; discharging by a second feeding mechanism, pressing, forming a molded paper with upper and lower layers of kraft paper and a shredded paper layer sandwiched in the middle; spraying glue on the middle and both sides of the molded paper by a second glue spraying head, and then spraying glue by a third glue spraying head to form a plurality of glue levels on the surface of the paper bag; turning and folding the molded paper along the middle by a bending device, so that after folding, a plurality of separated spaces can be formed along the length direction of the processing platform, and each space constitutes a storage space for a kraft paper bag; performing hot pressing treatment, cutting the cutter downward along the middle of the hot pressing sealing knife, and cutting the roll paper into the shape of a paper bag. The present invention is conducive to further optimizing the processing and production of double-layer kraft paper supplemented with waste paper to form paper bags; at the same time, it is conducive to promoting the reuse of paper materials and improving the durability of kraft paper bags.

Description

Technical Field

[0001] The present invention relates to the technical field of paper bag production, and in particular to a paper bag processing method for improving overall processing efficiency by rationally optimizing the layout of various production and processing links, and a processing system used in the implementation of the method. Background Art

[0002] Paper is the most important raw material in the production of paper bags and is also a recyclable resource. The raw material for papermaking is mainly plant fiber. In addition to the three main components of cellulose, hemicellulose and lignin, there are other components with smaller content, such as resin, ash, etc. In addition, there are auxiliary ingredients such as sodium sulfate. In addition to plant fiber, different fillers need to be added to paper according to different paper materials.

[0003] Paper bags are increasingly recognized by the public because of their environmental friendliness and recyclability. In real life, paper bags of different sizes and thicknesses are needed. Common ones include kraft paper bags made of kraft paper. Kraft paper as a packaging paper bag has high strength and certain tear resistance. Therefore, the tensile strength of kraft paper makes it very suitable for packaging needs.

[0004] When the researchers of the technical solution of the present invention analyzed the existing kraft paper bag processing process, they found that the current equipment used for kraft paper bag processing only uses a single device according to different needs, and other links rely on personnel dispatching to other equipment for subsequent processing and production. Therefore, for the processing and production of kraft paper bags, there is neither a set of coherent, intuitive, and easy-to-operate processing methods, nor the use of existing equipment to form a processing system that is conducive to improving production efficiency. If the many existing production links are still used, it will not be conducive to cost savings, especially for the processing of double-layer kraft paper bags, all of which are kraft paper. Both the processing method and the layout design of the system equipment are very limited, and it is impossible to take into account the recycling of waste paper. Therefore, after summarizing, the researchers of the technical solution of the present invention summarized the problems existing in the current kraft paper bag processing method and processing system as follows:

[0005] ① At present, there is no set of paper bag processing methods for double-layer kraft paper and waste paper as raw materials. Although various feeding mechanisms can be used to realize feeding, and appropriate gluing devices, paper folding devices, etc. can be used to glue and fold paper in sequence, this is only for the production of one layer of kraft paper, and cannot be applied to the smooth processing requirements of double-layer kraft paper bags or multi-layer paper bags. When technical personnel encounter these situations, they often cannot use existing processing equipment for layout, and cannot form a paper bag processing system that combines double-layer kraft paper and waste paper as raw materials;

[0006] ② For the paper feeding device, the paper is generally transported to the end of the conveying mechanism through the conveying mechanism, and then pushed to the next processing equipment through the pushing mechanism. After being processed into paper bags, it is transported through the conveying mechanism. Due to the processing of double-layer kraft paper and waste paper, three sets of paper feeding mechanisms need to be designed. Obviously, if the equipment installation area and position are not reasonably laid out, it will not only increase the length and height of the entire production line, but also increase the floor space of the equipment, and at the same time reduce the processing efficiency of paper bags. It can be seen that the importance of studying the processing method of multi-layer kraft paper bags;

[0007] ③ For the processing system of multi-layer kraft paper or kraft paper bags formed by recycling waste paper, glue spraying devices are currently used. Glue spraying devices are conventional technical means in this field. However, the location of the glue spraying device has not been carefully designed, especially the location of the glue spraying head must meet the next processing link, that is, to facilitate the processing of the paper bending device. The current processing link lacks technical means to solve this problem;

[0008] ④ For paper bags formed by combining kraft paper and waste paper, the existing processing method is usually to manually feed the waste paper to the appropriate position to make it fit with the kraft paper, and then enter the gluing stage together. Therefore, the feeding stage of the waste paper and the position where the waste paper is fed need to be further optimized in order to further improve the processing efficiency.

[0009] Based on the above analysis, the technicians of the technical scheme of the present invention have proposed further optimization of the paper bag processing method and the processing system used in this technical field on the basis of the existing known technology. By rationally arranging the feeding mechanism of the double-layer kraft paper and the waste paper, and the position area where the glue spraying device is set, the further optimization of the processing and production of paper bags formed by the double-layer kraft paper combined with the waste paper is achieved, so as to improve the efficiency of the processing and production of such paper bags. After actual application tests, the implementation of this method can make certain progress in the feeding and glue spraying of kraft paper bags, the recycling of paper materials and the durability of paper bags. The technical scheme proposed by the present invention can alleviate, partially solve or completely solve the problems existing in the prior art. Summary of the invention

[0010] In view of the above defects, the present invention provides a paper bag processing system and a processing system adopted by the same, which further optimizes the processing and production of paper bags formed by combining double-layer kraft paper with waste paper by rationally arranging the feeding mechanism of double-layer kraft paper and waste paper, and the position area where the glue spraying device is set, so as to improve the efficiency of the processing and production of such paper bags.

[0011] To achieve the above object, the present invention adopts the following technical solutions:

[0012] A paper bag processing method is suitable for producing and processing kraft paper bags by combining multiple layers of kraft paper with waste paper, and is characterized by comprising the following steps:

[0013] (1) A first unloading mechanism and a second unloading mechanism for placing kraft paper rolls are sequentially arranged at the starting position of the processing platform, and a waste paper feeding mechanism is added below the first unloading mechanism for conveying waste paper;

[0014] (2) The first unloading mechanism starts unloading kraft paper, and the waste paper feeding mechanism delivers the shredded paper to the upper surface of the kraft paper fed by the first unloading mechanism;

[0015] ⑶ Use the first glue spraying head to spray glue on the shredded paper, so that the shredded paper is attached to the upper surface of the kraft paper fed by the first feeding mechanism, and then the second feeding mechanism starts to discharge the kraft paper, and after the pressing device is pressed, the upper and lower layers of kraft paper are finally formed with the shredded paper layer sandwiched in the middle, and then the shredded paper is baked and cured in the oven after the lamination;

[0016] (4) The second glue spraying head arranged on the processing platform sprays glue on the middle and both sides of the formed paper to form a plurality of glue levels 1, and then the third glue spraying head arranged on the processing platform sprays glue to form a plurality of glue levels 2 on the surface of the paper bag, and the paper bag is turned over and folded in the middle by the bending device. After the formed paper is folded in half, not only the edges can be bonded and closed to each other, but also due to the formation of the glue level 2, the formed paper can be folded to form a plurality of separated spaces along the length direction of the processing platform, and each space constitutes a storage space for a kraft paper bag;

[0017] ⑸Finally, the paper bag is heat-pressed at the glue position by the hot pressing sealing knife, and the paper bag is conveyed to the cutting knife. The cutting knife cuts downward along the middle of the hot pressing sealing knife to cut the roll paper into the shape of a paper bag. The cut paper bag is conveyed to the packaging platform.

[0018] Through the technical solutions implemented above, technicians can use corresponding technical means to form corresponding technical solutions based on the same concept. These technical means include:

[0019] For the first unloading mechanism, the output end thereof is located lower than the output end of the waste paper feeding mechanism, so that the waste paper can directly adhere to the upper surface of the kraft paper fed by the output end of the first unloading mechanism;

[0020] Furthermore, the output end of the second feeding mechanism is located higher than the output end of the first feeding mechanism, so that after the waste paper adheres to the first feeding mechanism, the kraft paper fed by the second feeding mechanism is directly attached to the upper surface of the kraft paper fed by the first feeding mechanism.

[0021] On the basis of the same concept, combined with the technical solutions implemented by the above invention, technicians can also form the following technical solutions that can be implemented independently:

[0022] A processing system for producing kraft paper bags by combining multi-layer kraft paper with waste paper, comprising:

[0023] The first unloading mechanism and the second unloading mechanism are respectively arranged on the processing platform and are used to convey the kraft paper;

[0024] A waste paper feeding mechanism is arranged adjacent to the first feeding mechanism, and is used to make the waste paper directly adhere to the upper surface of the kraft paper fed in by the first feeding mechanism, and to form a molded paper sheet sandwiching the waste paper layer between the upper and lower layers of kraft paper after the kraft paper is fed in by the second feeding mechanism;

[0025] A first glue spraying device, which is arranged adjacent to the waste paper feeding mechanism and is used for spraying glue on the waste paper;

[0026] A pressing device, which is arranged on the processing platform at the paper output position of the second feeding mechanism, and is used for pressing the double-layer kraft paper and the waste paper;

[0027] An oven is arranged adjacent to the pressing device and is used to dry the glued and pressed paper;

[0028] The second glue spraying device is arranged on both sides of the processing platform in the discharge direction of the oven, and is used to spray glue on the middle part and both sides of the formed paper to form a glue level distributed along the length direction of the processing platform;

[0029] A third glue spraying device is arranged adjacent to the second glue spraying device and is used for spraying on the surface of the formed paper to form a plurality of glue levels 2 distributed longitudinally, and the distance between every two glue levels 2 is the same;

[0030] The bending device is arranged on the processing platform surface between the second glue spraying device and the third glue spraying device, and is used to fold the formed paper in half along the middle position, and form a plurality of storage spaces for forming a paper bag by gluing the two sides of the formed paper.

[0031] For the above independently implemented technical solutions, technicians can also use corresponding technical means to further implement them, including:

[0032] For the processing platform, a conveying platform for waste paper conveying is arranged outside the processing platform;

[0033] A paper shredder is placed on the upper surface of the conveying platform, and a material frame for carrying waste paper is arranged at the junction of the conveying platform and the processing platform.

[0034] For the waste paper feeding mechanism, a sensor may be added to sense the paper.

[0035] The waste paper feeding mechanism may be preferably arranged between the first discharging mechanism and the second discharging mechanism.

[0036] For the bending device, the processing platform in the discharge direction is sequentially arranged with a hot melt sealing knife and a cutting knife.

[0037] The present invention mainly arranges the kraft paper bag processing and production equipment and forms a set of targeted processing methods. By setting a feeding mechanism for double-layer kraft paper and waste paper and optimizing the position area for assembling the glue spraying device, it is beneficial to further optimize the processing and production of paper bags formed by double-layer kraft paper supplemented with waste paper, thereby improving the processing and production efficiency of such paper bags. At the same time, the processing system adopted is beneficial to promoting the reuse of paper materials and improving the durability of kraft paper bags. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The present invention is further described in detail below with reference to the accompanying drawings.

[0039] Figure 1 This is a schematic diagram of the layout of the processing system used in the paper bag processing method implemented by the present invention;

[0040] Figure 2 This is a paper bag processing method implemented by the present invention, and a schematic diagram of its working process;

[0041] Figure 3 The paper bag processing system implemented by the present invention is a schematic diagram of the layout of various material discharge mechanisms of the processing system adopted by the paper bag processing system.

[0042] In the figure:

[0043] 1. Processing platform;

[0044] 2. The first unloading mechanism;

[0045] 3. The second unloading mechanism;

[0046] 4. Waste paper feeding mechanism;

[0047] 5. Paper shredder;

[0048] 6. Transmission platform;

[0049] 7. Material frame;

[0050] 8. Sensor;

[0051] 9. The first glue spray head;

[0052] 10. Second glue spray head;

[0053] 11. The third glue spray head;

[0054] 12. Bending device;

[0055] 13. Pressing device;

[0056] 14. Hot melt sealing knife;

[0057] 15. Cutter;

[0058] 16. Oven;

[0059] 17. Packaging platform;

[0060] 101, glue position one;

[0061] 102, glue position 2;

[0062] 103. The state of the paper before bending;

[0063] 104. The state of the cardboard after bending. DETAILED DESCRIPTION

[0064] The paper bag processing method implemented by the technical solution of the present invention aims to solve the problems that in the past, in the process of producing kraft paper bags with waste paper, the feeding mechanism and the glue spraying device of the double-layer kraft paper and the waste paper are set in an unreasonable position area, which leads to the inability to form a set of coherent, intuitive and easy-to-operate processing methods for the processing and production of kraft paper bags, and the limited configuration of the selected processing system equipment leads to increased costs in many processing and production links and reduced durability of paper.

[0065] The technical solution implemented by the present invention is mainly to further optimize the technical means of kraft paper bag processing in the field of this technical field, so as to form a set of coherent processing methods in the process of using waste paper to produce kraft paper bags, and to save materials and improve the durability of kraft paper bags based on the processing system adopted. Since the purpose and requirements of the kraft paper bag processing method vary according to needs, the technical solution of the present invention only involves the layout of the kraft paper bag processing method and the processing system adopted. The equipment models used are all existing conventional technical means, and the various equipment that can be used are diverse. It depends on the economic conditions and processing needs of different manufacturers. It is not necessary to use the same processing equipment with the same structure, and there is no need to improve the processing equipment. It is only necessary to arrange the selected equipment in accordance with the technical solution implemented by the present invention. Obviously, the technical solution of the present invention does not involve the size of these equipment, the circuit connection of the equipment, etc. Those skilled in the art know that as long as the supply It only needs to connect the electrical circuits, and does not involve the improvement or design of the circuit scheme. If the selection of circuit components and the connection method are involved in the process of equipment connection, they are also conventional technical means in this field. Any technician with basic skills can implement it. Even if there are some assembly problems, they can be implemented step by step according to the selected equipment manual, without the need for the designer of the technical scheme of the present invention to introduce all the conventional technologies. If it involves circuits, all conventional circuits suitable for the function of the equipment can be used. It should be pointed out that these are all completed by technicians in this field using conventional technical means in this field; not limited to this, it is unrealistic to list all the equipment selections. Therefore, the technical scheme implemented by the present invention is actually a paper bag processing method that can be referred to and implemented by technicians in this field in combination with conventional technical means. According to different application conditions and application requirements, technicians can actually apply and debug the method and technical scheme formed in this application, and can actually obtain a series of advantages brought by it. These advantages will be gradually reflected in the following analysis of the system structure.

[0066] Embodiment 1

[0067] like Figure 1-3 As shown, the paper bag processing method implemented by the technical solution of the present invention can be arranged on a horizontal processing platform 1 before implementation. The specific implementation method includes the following steps:

[0068] (1) First, the processing platform is laid out: the first feeding mechanism 2 and the second feeding mechanism 3 are sequentially arranged at the starting position of the processing platform 1 and are used to place the kraft paper rolls. A waste paper feeding mechanism 4 is added below the first feeding mechanism 2 to convey the waste paper. According to the selected feeding device, the kraft paper can be fed by pulling, pushing or rolling. The waste paper is fed into the waste paper conveying platform 6, shredded by the shredder 5, and conveyed to the shredded paper frame 7. A sensor 8 can be arranged at an appropriate position of the waste paper feeding mechanism 4;

[0069] (2) Performing feeding and pressing operations, the first feeding mechanism 2 starts to feed kraft paper, and the waste paper feeding mechanism 4 feeds the shredded paper to the upper surface of the kraft paper fed by the first feeding mechanism 2; the first glue spraying head 9 is used to spray glue on the shredded paper, and the glue can be water-soluble glue, so that the shredded paper is attached to the upper surface of the kraft paper fed by the first feeding mechanism 2, and then the second feeding mechanism 3 starts to feed kraft paper, and after pressing by the pressing device 13, finally a molded paper with upper and lower layers of kraft paper and a shredded paper layer sandwiched in the middle is formed, and after pasting, it is baked and cured in the oven 16, and the layers are more compact;

[0070] (3) Glue spraying and bending operations are performed. First, the second glue spraying head 10 sprays glue on the middle and both side surfaces of the formed paper to form a plurality of glue levels 101. Then, the third glue spraying head 11 sprays glue according to the pre-designed glue spraying positions to form a plurality of glue levels 2 102 on the surface of the paper bag. The paper bag is turned over and folded in the middle by the bending device 12. After the formed paper is folded in half, not only the edges can be bonded and closed to each other, but also, due to the setting of the glue level 2 102, the formed paper can form a plurality of separated spaces along the length direction of the processing platform 1, and each space constitutes a storage space for a kraft paper bag.

[0071] (4) Finally, the paper bag is heat-pressed at the glue position by the hot pressing sealing knife, and the paper bag is conveyed to the cutter 15, which cuts downward along the middle of the hot pressing sealing knife to cut the roll paper into the shape of a paper bag. The cut paper bag is conveyed to the packaging platform 17 for packaging.

[0072] The paper bag processing method implemented by the technical solution of the present invention overcomes the drawbacks of only being able to process single-layer kraft paper bags or using too much labor to manually process multi-layer kraft paper bags in the past. By rationally arranging the location of the kraft paper bag processing and production device, that is, the respective feeding mechanisms of the double-layer kraft paper and the waste paper, and the ingenious layout of the location of the glue spraying device, it is conducive to further optimizing the processing and production links of waste paper supplemented with double-layer kraft paper to form paper bags. It can not only allow the waste paper to be directly transported for reuse, but also can be directly cut after the formed paper is formed through glue spraying and bending, thereby improving the efficiency of the processing and production of such kraft paper bags, and at the same time, it is conducive to promoting the reuse of paper materials and improving the durability of kraft paper bags.

[0073] Embodiment 2

[0074] like Figure 1-3 As shown, for the processing system adopted by the paper bag processing method implemented by the technical solution of the present invention, the unloading mechanism to be selected for kraft paper can preferably adopt an unloading reel or other device with paper feeding function. Since double-layer kraft paper needs to be processed, the first unloading mechanism 2 and the second unloading mechanism 3 are respectively arranged on the processing platform 1 in sequence, and a waste paper feeding mechanism 4 is added below the first unloading mechanism 2. For the position setting of these unloading mechanisms, it is preferred that the output end of the first unloading mechanism 2 is located lower than the output end of the waste paper feeding mechanism 4, so that the waste paper is directly attached to the output of the first unloading mechanism 2. The upper surface of the kraft paper fed in from the outlet, correspondingly, the position of the output end of the second feeding mechanism 3 is higher than the output end of the first feeding mechanism 2, so that after the waste paper is attached to the first feeding mechanism 2, the kraft paper fed in by the second feeding mechanism 3 can be directly attached to the upper surface of the kraft paper fed in by the first feeding mechanism 2, thereby forming a paper structure in which a layer of waste paper is sandwiched between the upper and lower layers of kraft paper, that is, a multi-layer paper raw material is pre-formed for further processing of paper bags. Obviously, the waste paper sandwiched between the upper and lower kraft papers can improve the durability of the single-layer kraft paper used in the past and the waste paper can be reused.

[0075] Furthermore, in order to make the three layers of paper (i.e., the upper and lower layers of kraft paper and the waste paper layer) adhere more tightly, a first glue spraying head 9 is arranged between the first feeding mechanism 2 and the second feeding mechanism 3. Since the waste paper feeding mechanism 4 is also located between the first feeding mechanism 2 and the second feeding mechanism 3, the first glue spraying head 9 can be directly arranged at a position adjacent to the waste paper feeding mechanism 4 in the installation position, so as to spray glue on the waste paper or kraft paper;

[0076] Furthermore, in order to maintain the continuity of waste paper feeding, a conveying platform 6 can be built outside the processing platform 1, and a shredder 5 can be placed on the upper surface of the conveying platform 6, and then a material frame 7 is set at the junction of the conveying platform 6 and the processing platform 1. The waste paper feeding mechanism 4 then feeds the waste paper in the material frame 7 to the upper surface of the kraft paper output by the first feeding mechanism 2. The waste paper feeding mechanism 4 preferably adopts a pushing device that can output paper, and the waste paper feeding mechanism 4 is additionally provided with a sensor 8 for conveying the paper after sensing the paper.

[0077] like Figure 1-3As shown, in the processing system implemented by the technical solution of the present invention, a pressing device 13 is arranged at the output end of the second discharge mechanism 3 so as to make the double-layer kraft paper and the waste paper fit more tightly. An oven 16 is arranged adjacent to the pressing device 13 so as to dry the glue after gluing and pressing. The positions of the pressing device 13 and the oven 16 can be directly set on the upper surface of the processing platform 1 or a platform for placing these devices can be arranged separately, depending on the actual needs of the technicians.

[0078] like Figure 1-3 As shown, through the implementation of the above processing system, after the drying oven 16, a formed paper structure with a waste paper layer sandwiched between the upper and lower layers of kraft paper with dried glue can be directly formed, which is the final raw material of the kraft paper bag (i.e., the paper skin state 103 before bending). In order to simplify the complicated processing flow of the kraft paper bag in the past, a second glue spraying head 10 can be directly arranged on both sides of the processing platform 1 in the discharge direction of the drying oven 16, so as to spray glue on the middle part and both sides of the formed paper structure, forming glue levels 101 distributed along the length direction of the processing platform 1, and these glue levels 101 are respectively located on the two side edges and the middle area of ​​the formed paper;

[0079] Accordingly, a third glue spray head 11 is added at a position adjacent to the second glue spray head 10 implemented, and the surface of the molded paper after the operation of the second glue spray head 10 is sprayed by the third glue spray head 11 to form a plurality of glue levels 102, which are distributed longitudinally (i.e., perpendicular to the length direction of the processing platform 1) and the spacing between every two glue levels 102 is the same, thereby ensuring that the size specifications of the paper bags produced by the same molded paper are consistent;

[0080] Furthermore, a bending device 12 for folding the formed paper in half along the middle position is arranged on the upper surface of the processing platform 1 between the second glue spraying head 10 and the third glue spraying head 11, and the surface of the formed paper after glue spraying is folded in half (i.e., the paper skin state 104 after bending). Since both sides of the formed paper have glue level 101 and the surface has a plurality of glue levels 2 102, after the formed paper is folded in half, not only the edges can be glued together and closed, but also due to the setting of the plurality of glue levels 2 102, the formed paper can form a plurality of separated spaces along the length direction of the processing platform 1, and each space constitutes a storage space for a kraft paper bag.

[0081] like Figure 1-3As shown, after the paper bag processing system is used for glue spraying and bending, a hot melt sealing knife 14, a cutting knife 15, and a packaging platform 17 can be arranged in sequence on the processing platform 1 in the discharge direction of the bending device 12, so that the paper bags after the glue spraying and bending operations can be dried in sequence, cut along each glue level 2 102, and divided into several paper bags for packaging.

[0082] For other conventional options related to the technical features implemented above, technicians can completely adopt conventional technical means or make corresponding improvements based on the technical solution of the present invention. For example, the glue spray head is obviously a glue spraying device or a component of a glue spraying device, which only needs to have a glue spraying function without making any improvements to the glue spraying device itself; for another example, the bending component can select a device that can fold paper, without requiring the selection of a certain model of component; for another example, the system only involves the position layout of each device, not the specific structure and assembly method of each device. These can be flexibly implemented according to conventional technical means and will not be repeated here.

[0083] In the description of this specification, if the terms "Example 1", "this embodiment", "specific implementation" and the like appear, it means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention or the invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example; moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in an appropriate manner.

[0084] In the description of this specification, the terms "connect", "install", "fixed", "set", "having", etc. are all understood in a broad sense. For example, "connection" can be a fixed connection or an indirect connection through an intermediate component without affecting the relationship between components and the technical effect. It can also be an integral connection or a partial connection. As in this example, for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0085] The above description of the embodiments is to facilitate the understanding and application of ordinary technicians in the technical field. It is obvious that those familiar with the technical field can easily make various modifications to these examples and apply the general principles described here to other embodiments without creative work. Therefore, this case is not limited to the above embodiments. Modifications in the following situations should all be within the scope of protection of this case: ① A new technical solution implemented based on the technical solution of the present invention and combined with existing common knowledge, the technical effect produced by the new technical solution does not exceed the technical effect of the present invention, for example, the technical solution formed by combining the feeding mechanism of kraft paper and waste paper with the position where the glue spraying device is set, and the technical solution formed has no other technical effects; ② The equivalent replacement of some features of the technical solution of the present invention by using the known technology, the technical effect produced is the same as the technical effect of the present invention, for example, the model of the glue spraying device and the model of the feeding device are equivalently replaced; ③ The technical solution of the present invention is expanded based on the technical solution of the present invention, and the substantive content of the expanded technical solution does not exceed the technical solution of the present invention; ④ The equivalent transformation made by using the content recorded in the text of the present invention or the drawings of the specification, and the obtained technical means are applied to other related technical fields.

Claims

1. A paper bag processing method, suitable for producing and processing kraft paper bags by combining multi-layer kraft paper with waste paper, characterized in that: The following steps are involved: (1) A first unloading mechanism and a second unloading mechanism for placing kraft paper rolls are sequentially arranged at the starting position of the processing platform, and a waste paper feeding mechanism is added above the first unloading mechanism for conveying waste paper; (2) The first unloading mechanism starts unloading kraft paper, and the waste paper feeding mechanism delivers the shredded paper to the upper surface of the kraft paper fed by the first unloading mechanism; ⑶ Use the first glue spraying head to spray glue on the shredded paper, so that the shredded paper is attached to the upper surface of the kraft paper fed by the first feeding mechanism, and then the second feeding mechanism starts to discharge the kraft paper, and after the pressing device is pressed, the upper and lower layers of kraft paper are finally formed with the shredded paper layer sandwiched in the middle, and then the shredded paper is baked and cured in the oven after the lamination; (4) The second glue spraying head arranged on the processing platform sprays glue on the middle and both sides of the formed paper along the paper conveying direction to form a plurality of glue levels 1, and then the third glue spraying head arranged on the processing platform sprays glue horizontally along the direction perpendicular to the paper conveying direction to form a plurality of glue levels 2 on the surface of the paper bag, and the formed paper is turned over and folded in half along the middle of the formed paper by the bending device. After the formed paper is folded in half, not only the edges can be bonded and closed to each other, but also due to the formation of the glue level 2, a plurality of separated spaces can be formed along the length direction of the processing platform after the formed paper is folded, and each space constitutes a storage space for a kraft paper bag; ⑸Finally, the paper bag is heat-pressed at the two glue positions by the hot pressing sealing knife, and the paper bag is conveyed to the cutting knife. The cutting knife cuts downward along the middle of the two glue positions of the paper bag, cutting the roll paper into the shape of a paper bag, and the cut paper bag is conveyed to the packaging platform.

2. The paper bag processing method according to claim 1, characterized in that: The output end of the first material discharging mechanism is located at a position lower than the output end of the waste paper feeding mechanism, so that the waste paper can directly adhere to the upper surface of the kraft paper fed by the output end of the first material discharging mechanism.

3. The paper bag processing method according to claim 2, characterized in that: The output end of the second feeding mechanism is located higher than the output end of the first feeding mechanism, so that after the waste paper adheres to the first feeding mechanism, the kraft paper fed by the second feeding mechanism is directly attached to the upper surface of the kraft paper fed by the first feeding mechanism.

4. The paper bag processing method according to claim 1, characterized in that: The processing platform on the discharging direction of the bending device is sequentially arranged with a hot pressing sealing knife and a cutting knife.

5. The paper bag processing method according to claim 1, characterized in that: The first unwinding mechanism or the second unwinding mechanism adopts an unwinding reel.

6. A paper bag processing system, which is used for producing and processing kraft paper bags by combining multi-layer kraft paper with waste paper, characterized in that: include: The first unloading mechanism and the second unloading mechanism are respectively arranged on the processing platform and are used to convey the kraft paper; A waste paper feeding mechanism, which is arranged adjacent to the first feeding mechanism, is used to make the waste paper directly adhere to the upper surface of the kraft paper fed in by the first feeding mechanism, and to form a molded paper sheet sandwiching the waste paper layer between the upper and lower layers of kraft paper after the kraft paper is fed in by the second feeding mechanism; A first glue spraying device, which is arranged adjacent to the waste paper feeding mechanism and is used for spraying glue on the waste paper; A pressing device, which is arranged on the processing platform at the paper output position of the second feeding mechanism, and is used for pressing the double-layer kraft paper and the waste paper; An oven, which is arranged adjacent to the laminating device and is used to dry the glued and pressed paper; The second glue spraying device is arranged on both sides of the processing platform in the discharge direction of the oven, and is used to spray glue on the middle part and both sides of the formed paper along the paper conveying direction to form a glue level distributed along the length direction of the processing platform; A third glue spraying device, which is arranged adjacent to the second glue spraying device, is used to spray glue horizontally on the surface of the formed paper along a direction perpendicular to the paper conveying direction to form a plurality of glue levels 2, and the distance between every two glue levels 2 is the same; A folding device, which is arranged on the processing platform surface between the second glue spraying device and the third glue spraying device, is used to fold the formed paper in half along the middle position, and form a plurality of storage spaces for forming a paper bag by bonding the first glue level and the second glue level of the formed paper; A conveying platform for conveying waste paper is arranged outside the processing platform.

7. The paper bag processing system according to claim 6, characterized in that: A paper shredder is placed on the upper surface of the conveying platform, and a material frame for carrying waste paper is arranged at the junction of the conveying platform and the processing platform.

8. The paper bag processing system according to claim 7, characterized in that: The waste paper feeding mechanism is additionally provided with a sensor for sensing the paper and conveying it.

9. The paper bag processing system according to claim 6, characterized in that: The waste paper feeding mechanism is located between the first discharging mechanism and the second discharging mechanism.

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